allen



v UNITED ySTATES PATENT OFFICE.

JOHN H. ALLEN, OF BROOKLYN, NEW YORK.

JOURNAL-BOX.

SPECIFICATION forming part of Letters Patent No. 236,868, dated January25, 1881.

Application led November 18, 1880.

To all whom t may concern Be it known that I, JOHN H. ALLEN, ofBrooklyn, in the State of New York, have invented a new and ImprovedJournal-Box, of which the following is a specification.

Figure I is a sectional elevation and partly front view. Fig. II ispartly a top view and one-half in section at center of shaft.

Similar letters of reference indicate corresponding parts.

This invention, which is more particularly intended for pillow-blockscast upon the bedplate of the engine, consists in making the wedges on.each side, which act against the side cheeks, to extend the whole lengthof the cheeks or the wh ole length of the bearing, with straightsurfaces at their inner side, nekt to the cheeks, and with cylindricalouter surfaces fitting into cylindrical surfaces ot' the pillowblockjaws, whereby the journal-boxes, together with the wedges, can turnin'the pillowblock, if, at any time, the shaft should come piece, n, areiitted square upon the bottom of (No model.)

the pillow-block and against the Linder side of the cap K;

The keys or wedges H H. are made cylindrical on their outside, andplaced in contact with the inclined and cylindrical surfaces of the jawsG G, while their straight surfaces are placed in contact with thestraight outer surfaces of the side pieces, w w. The wedges H H aremoved by means of suitable screws J J passing through the capK, and bythis means adjust the side pieces, w w. By this arrangement andconstruction of making the outside of the wedges H H inclined andconcentric, fitting against corresponding surfaces in the jaws G G, anequal bearingis obtained against the side pieces, w fw, in their wholelength, and consequently these side pieces or bea-rings, w fw, can bemade to bear evenly against the whole length ot' the journal ot' theshaft, even if said shaft should be slightly out of line.

What I claim as my invention, and desire to secure by Letters Patent,is-

In combination with the side pieces or side beariu gs, w w, of ajournal-box, the wedges H H, provided with concentric inclined outersurfaces tting against corresponding surfaces in the inside of thepillow-block jaws G G, arranged in the manner and for the purposesuhstantially as described.

JNO. H. ALLEN.

Witnesses:

HENRY E. ROEDER, J. B. NoNns.

